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Technical Specifications
Last Updated: 2026-07-28| Identity | |
| Brand |  |
| Product Number | ES3001 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
58.34 oz-in
4.20 kg-cm
0.4 N-m
4.8V
44.45 oz-in
3.20 kg-cm
0.3 N-m
Below Average
|
| Speed |
6.0V
0.17 sec/60°
352.9 deg/s
58.8 RPM
4.8V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Above Average
|
| Physical | |
| Weight | 1.31 oz37.0 gAbove Average |
| Dimensions |
L 1.52 in W 0.74 in H 1.374 in L 38.6 mm W 18.8 mm H 34.9 mm |
| Case Material | Plastic |
| Drivetrain | |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T estimate |
| Control & Signal | |
| Modulation | Analog |
| Direction | Counterclockwise |
| Neutral Position | 1500 µs |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | 0–55 °C32–131 °F |
| Connectivity | |
| Connector | JR |
| Origin | |
| Country of Origin | China |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Below Average Stronger than 21% of 158 Analog Standard servos at 4.8V |
| Speed | Above Average Faster than 85% of 157 Analog Standard servos at 4.8V |
| Weight | Above Average Lighter than 90% of 430 Analog Standard servos |
Performance Analysis
| Shaft Power | 0.59–0.63 W |
| Power Density | 0.411 W/in³ More power-dense than 31% of 420 Analog Standard servos |
| Torque Density | 1.2014 oz-in/g Stronger than 31% of 158 Analog Standard servos |
| Torque-to-Volume Ratio | 28.76 oz-in/in³ Denser torque than 32% of 158 Analog Standard servos |
| Speed-to-Weight | 0.19305 (1/sec·g) Faster than 94% of 157 Analog Standard servos |
| Speed-Torque Trade-off | 6.22 Better balanced than 3% of 157 Analog Standard servos |
| Torque Gain per Volt | 26.04%/V More voltage-responsive (torque) than 94% of 121 Analog Standard servos |
| Speed Gain per Volt | -14.72%/V More voltage-responsive (speed) than 0% of 122 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 11% of 189 Analog Standard servos |
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Reviews (1)
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nevermind
February 23, 2026Application(s): 40 size glow trainer plane
Comments: They have a non-standard servo arm spline
As the servo spline is a nonstandard size it does NOT fit Futaba or HiTec servo arms. Emax does not even specify what the spline is! Forget using any arms you have. Forget replacing a Futaba servo in any car or plane as the servo arms will have to be replaced as well. Such a pain. These servo can only be used with the few low quality servo arms included with the servo making these servo much much less useful.